AH285 is an integrated fan motor controller with Hall sensor's capability, produced by Anachip. It contains two complementary open-drain transistors as motor coil drivers, automatic lock current shutdown, and recovery protections. The output current is 500mA and the working voltage is 3.8V~20V.
The Anachip AH285 is a monolithic fan motor controller with integrated Hall sensor capability. It includes two complementary open-drain transistors for driving motor coils, automatic lock current shutdown to prevent coil burning, and recovery protections that attempt to restart the motor if the rotor becomes blocked.
Additionally, the device provides a frequency generator (FG) output for speed detection. The controller is available in SIP-5L, SOT23-5L, and SOT89-5L packages and operates within a supply voltage range of 3.8V to 20V.
| Supply Voltage | 3.8V ~ 20V |
|---|---|
| Output Current (SIP/SOT89) | 500mA |
| Output Current (SOT23) | 400mA |
| Operating Temperature Range | -40 ~ 100 °C |
| Storage Temperature Range | -55 ~ 150 °C |
| Maximum Junction Temperature | 150 °C |
The device operates with a supply voltage between 3.8V and 20V.
The circuit shuts down the output driver to avoid coil burning, then automatically tries to restart the motor.
The AH285 is available in SIP-5L, SOT23-5L, and SOT89-5L packages.